The plant ADH gene family

Abstract

SUMMARYThe structures, evolution and functions of alcohol dehydrogenase gene families and their products have been scrutinized for half a century. Our understanding of the enzyme structure and catalytic activity of plant alcohol dehydrogenase (ADH-P) is based on the vast amount of information available for its animal counterpart. The probable origins of the enzyme from a simple b-coil and eventual emergence from a glutathione-dependent formaldehyde dehydrogenase have been well described. There is compelling evidence that the small ADH gene families found in plants today are the survivors of multiple rounds of gene expansion and contraction. To the probable original function of their products in the terminal reaction of anaerobic fermentation have been added roles in yeast-like aerobic fermentation and the production of characteristic scents that act to attract animals that serve as pollinators or agents of seed dispersal and to protect against herbivores.

In silico characterization and evolution studies of alcohol dehydrogenase gene from Phoenix dactylifera L.cv Deglet Nour

“…Notung2.8 analysis using the ADH gene sequences suggested that the first ADH gene divergence event shown in Figure 3 by a circle separate monocot and dicots species from Papilionoideae species. The palms ADH proteins diverged within the monocots species (Figure 3) except WrADH and before the others monocots species (Figure 3) (Strommer, 2011). Our analysis revealed that in palms, the divergence of WrADH genes occurred after the others palms species diverged.…”

“…The ADH genes in Arabidopsis thaliana (Innan et al, 1996), Arabidopsis gemmifera (Miyashita et al, 2013) and Leavenwortia in Brassicaceae, cottons (Small et al, 2000), and grasses Gaut et al, 1999) have been subjected to molecular evolutionary studies. However, the broader evolutionary histories of the ADH genes in the angiosperms remain unclear since few studies have investigated the evolution of the ADH genes in a wide range of angiosperms (Strommer, 2011).…”

Expression Profiles of Stress Responsive Genes in Rice (Oryza Sativa L.) Under Abiotic Stresses

“…Understanding the stress response mechanisms in plants therefore is a prerequisite for the development of new varieties of crops with durable levels of tolerance to these abiotic stresses. in both monocots and dicots including rice and Arabidopsis, the modes of expression of a large number of abiotic stress responsive genes, cDnAs and eSts (expressed sequence tags) have extensively been studied under various environmental conditions (3,9,13,14,19,20,24,25,28,31,35). Among them, DREB (dehydration responsive element binding) and CBF (c-repeat/DReB binding factor) genes, AOX (alternative oxidase) genes, genes involved in alcohol fermentation, dehydration and sugar metabolism are important players.…”

“…Genes involved in alcohol fermentation are known to respond to abiotic stresses. transcripts of ADH (alcohol dehydrogenase) and ALDH (aldehyde dehydrogenase) genes, which are involved in alcohol fermentation, are accumulated in response to abiotic stresses in rice and Arabidopsis thaliana (1,5,8,12,18,28). Abscisic acid (ABA) is a phytohormone regulating various abiotic stress responsive pathways (36).…”

Analysis of Correlations Between Climate and Molecular Adaptive Evolution of Wild Barley with Geographical Information Systems (GIS)

“…Alcohol dehydrogenases (ADH) is a group of Zn-binding enzymes which present in many organisms. The ADH family plays an important role in facilitating the interconversion between alcohols and *Address correspondence to this author at the State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, China; Tel: 13911823799; E-mail: 596295719@qq.com aldehydes or ketones with nicotinamide adenine dinucleotide (NAD) as a coenzyme [5]. According to the previous reports, ADH family of plants has been observed to be involved in the biotic and abiotic stresses, such as disease resistance, drought tolerance, flooding resistance and so on [6].…”